200512157 has 4 divisors (see below), whose sum is σ = 201351360. Its totient is φ = 199672956.

The previous prime is 200512141. The next prime is 200512159. The reversal of 200512157 is 751215002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200512157 - 2⁴ = 200512141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200512159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419243 + ... + 419720.

It is an arithmetic number, because the mean of its divisors is an integer number (50337840).

Almost surely, 2^200512157 is an apocalyptic number.

It is an amenable number.

200512157 is a deficient number, since it is larger than the sum of its proper divisors (839203).

200512157 is an equidigital number, since it uses as much as digits as its factorization.

200512157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839202.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 200512157 is about 14160.2315305930. The cubic root of 200512157 is about 585.3023075298.

Adding to 200512157 its reverse (751215002), we get a palindrome (951727159).

The spelling of 200512157 in words is "two hundred million, five hundred twelve thousand, one hundred fifty-seven".